The Chinese sexagenary cycle (干支)
is a cyclic numeral system of 60 combinations of the two basic cycles, the
Ten Heavenly
Stems (天干; tiāngān) and the
Twelve
Earthly Branches (十二支)).
These have been traditionally used as a means of numbering days and years. It is
also an important part of Chinese astrology or Bazi.

The cycle was used in China since the second millennium BC, as a means of
naming days. The calendar is calculated by combining the ten stems (十干)
and twelve branches (十二支).
Combining the series from a greater cycle of 60 terms. The first term is formed
by adding the first stem to the first branch, then the second stem to the second
branch, etc., creating 60 pairs, each pair known as a pair of Jia Zi (甲子).

60 Jia Zi (甲子) Table

Jia Wood

Yi Wood

Bing Fire

Ding Fire

Wu Earth

Ji Earth

Geng Metal

Xin Metal

Ren Water

Gui Water

Tiger

Yang Water

Ox

Yin Earth

Tiger

Yang Wood

Rabbit

Yin Wood

Dragon

Yang Earth

Snake

Yin Fire

Horse

Yang Fire

Goat

Yin Earth

Monkey

Yang Metal

Rooster

Yin Metal

Jia Wood

Yi Wood

Bing Fire

Ding Fire

Wu Earth

Ji Earth

Geng Metal

Xin Metal

Ren Water

Gui Water

Dog

Yang Earth

Pig

Yin Water

Rat

Yang Water

Ox

Yin Earth

Tiger

Yang Wood

Rabbit

Yin Wood

Dragon

Yan g Earth

Snake

Yin Fire

Horse

Yang Fire

Goat

Yin Earth

Jia Wood

Yi Wood

Bing Fire

Ding Fire

Wu Earth

Ji Earth

Geng Metal

Xin Metal

Ren Water

Gui Water

Monkey

Yang Metal

Rooster

Yin Metal

Dog

Yang Earth

Pig

Yin Water

Rat

Yang Water

Ox

Yin Earth

Tiger

Yang Wood

Rabbit

Yin Wood

Dragon

Yang Earth

Snake

Yin Fire

Jia Wood

Yi Wood

Bing Fire

Ding Fire

Wu Earth

Ji Earth

Geng Metal

Xin Metal

Ren Water

Gui Water

Horse

Yang Fire

Goat

Yin Earth

Monkey

Yang Metal

Rooster

Yin Metal

Pig

Yang Earth

Pig

Yin Water

Rat

Yang Water

Ox

Yin Earth

Tiger

Yang Wood

Rabbit

Yin Wood

Jia Wood

Yi Wood

Bing Fire

Ding Fire

Wu Earth

Ji Earth

Geng Metal

Xin Metal

Ren Water

Gui Water

Dragon

Yang Earth

Snake

Yin Fire

Horse

Yang Fire

Goat

Yin Earth

Monkey

Yang Metal

Rooster

Yin Metal

Dog

Yang Earth

Pig

Yin Water

Rat

Yang Water

Ox

Yin Earth

Jia Wood

Yi Wood

Bing Fire

Ding Fire

Wu Earth

Ji Earth

Geng Metal

Xin Metal

Ren Water

Gui Water

Tiger

Yang Wood

Rabbit

Yin Wood

Dragon

Yang Earth

Snake

Yin Fire

Horse

Yang Fire

Goat

Yin Earth

Monkey

Yang Metal

Rooster

Yin Metal

Dog

Yang Earth

Pig

Yin Water

In Chinese Fortune Telling or Bazi, a person's Bazi Chart comprises of
8
Characters or Four Pillars--one Jia Zi for the Year, Month, and the Hour of
birth. For example: